libstdc++-v3/testsuite/27_io/basic_filebuf/sputc/char/1057.cc

   1 // 1999-10-11 bkoz
   2
   3 // Copyright (C) 1999-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20
  21 // 27.5.2 template class basic_streambuf
  22
  23 #include <string>
  24 #include <fstream>
  25 #include <testsuite_hooks.h>
  26
  27 class nullsetpbuf : public std::filebuf
  28 {
  29   char foo[64];
  30 public:
  31   nullsetpbuf()
  32   {
  33     setp(foo, foo + 64);
  34     setp(0, 0);
  35   }
  36 };
  37
  38 // libstdc++/1057
  39 void test05()
  40 {
  41   std::string text1 = "abcdefghijklmn";
  42
  43   nullsetpbuf nsp;
  44   // Immediate crash as sputc writes to null pointer
  45   nsp.sputc('a');
  46 }
  47
  48 int main()
  49 {
  50   test05();
  51   return 0;
  52 }